Safety razor



Jan. 2s', 1941. y s. n. 'Bem/1mm 2,230,102

SAFETY RAZOR lINV NTOR ATTORNEY Jan. 28, `\s H. BENJAMlN SAFETY RAzoR f Filed July'2f7, 1940 8 Sheets-Sheet 3 flog d? Z figg.

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SAFETY RAZOR Filed July 27, 1940 s sheets-sheet 4 VENTOR NEY Jan, 28 1941. y S. H. BENJAMIN a 2,230,102

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INVENTOR @ATTORNEY Jan- 28 1941 s. BENJAMIN SAFETY RAZORv med 'July 27, 1940 a sheets-snm v r: 0 t I 1'? 123 2a faz/3110 Z0 z3 z/ zw 249214 .ggg .Zi

lllll ATTORNEY Jan. 2s, 1941. '5. ,BENJAM'M 2,230,102

SAFETY RAZOR Filed July 27,'1940 a sheets-shet e zoe .f0.9

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- '2 INVEN-roR I YZ ATTORNEY i Patented Jan. 28, 1941 V UNITEDA STATES 'PATENT OFFICEl SAFETY RAZOR Sidney H. Benjamin, Milwaukee, Wis.

Application July 2'?, 1940, Serial No. 347,838

A' 16 Claims.

My invention relates to improvements in safety razors and refers particularly to dsafety razors of such construction as to prevent the removal or insertion of a blade without the assistance of special devices adapted for those purposes.

One of the objects of my invention is a safety razor of such construction that a blade can not be inserted therein without the assistance of a blade-carrying device adapted for that purpose.

Another object of my invention is a safety razor of such construction that a blade can not be removed therefrom without the assistance of a blade-carrying device adapted for that purpose.

Another object of my invention is a safety razor of such construction that the insertion of a blade-carrying device .therein will insert and properly deposit a blade therein, and that the withdrawal of said blade-carrying device will withdraw a previously deposited blade therefrom.I

` 30 ber adapted for that purpose.

Another object of my invention is 4a safety razor of such construction that a blade may be readily and properly inserted and deposited upon a guard member without contact with the fingers 35 of the operator. v

Another object of my invention is a safety razor of such construction that a blade deposited upon a guard member can be removed without contact with the fingers of the operator.

Itis evident that the safety razors of my invention possessingy the above-mentioned attributes, and many others which will be evident upon a consideration of my disclosures and descriptions herein, have many important and val- 45 uable properties over those in which it is necessary for the operator'to handle the blades, frequently resulting in cutting the ngers; and, in which the blade frequently becomes displaced due to the tilting, or canting, of the device during 50 the blade-positioning operation.

In the accompanying drawings illustrating modifications of the devices of my invention, similar parts are designated by similar numerals.

Figure 1 is a central vertical section taken on 55 the line I-l of the razorof Figure 2.

Figure 2 is a left-end View of the device of Figure 1.

Figure 3 is a section through the line 3-3 of Figure 1.

Figure 4 is a bottom view of the cap or cover of the devices of Figures 1 to 3.

Figure 5 is a section through the line 5-5 of Figure 1.

Figure 6 is a section through the line 6-6 of Figure l.

Figure '7 is a top view of one form of a blade adapted for use in my razor.

Figure 8 is an enlarged section through the line 8-8 of Figure 6, with the cap, or top, re-

Figure 12. l

Figure 14 is a section through the line Ill-I4 of Figure 13`.

Figure 151s a bottom view of Figure 12 with the blades removed.

Figure 16 is a top -view of a modified form of a blade magazine ejector of my invention.

Figure 1'? is a top View of a modified form .of

a blade adapted for use in tion.

. Figure 18 is a. top view of a modified form of a blade of my invention.

Figure 19 is a top view of the blade magazine ejector of Figure 12 partially introduced into the razor of Figure 41 for the PurpOse of removing a used blade and the insertion of a new one.

Figure 20 is a section through the line 20-20 of Figure 19.

Figure 21 is a vertical cross-section of the ejector and the razor head, with the ejector further advanced into the razor overthat shown in Figure 20. l

Figure 22 is Ya vertical cross-section with the ejector fully advanced into the razor head.

`Figure 23 is a section through the line 23-23 of Figure 22.

Figure 24 is a. longitudinal section of a modi'- .ed form of a 'device of my invention. y

Figure 25 is a. front view of a portion of th device ofFigure 24, partly in section.-

a razor of my invenof Figure 24.

Figure 2'1 is a section through the line 21-21 of Figure 24.

Figure 28 is a plan view of a razor blade adapted for use with the device of Figure 24.

Figure 29 is an enlarged left end view of the upper portion f Figure 24.

Figure 30 is a section through the line 30-30 of Figure 24.

Figure 31 is an enlarged end elevation, partly broken away, of the upper portion of Figure 24 with the cap raised and revolved 90.

Figure 32 is a` section through the line 32--32 of Figure 31. I

Figure 33 is a top vview of a magazine adapted for use with the device of Figure 24.

Figure 34 is a section through the line 3434 of Figure 33.

Figure 35 is a bottom view of Figure 33 with the blades removed.

Figure 36 is a section through the line 36-36 of Figure 33.

Figure 37 is a top view of a blade magazine ejector adapted for use lwith the razor of Figure 24 partially introduced-therein for the purpose of removing an old blade and inserting a new one.

Figure 38 is a section through the line 38-38 of l Figure 37.

Figure 39 is a vertical section of the ejector and razor head with the ejector advanced further than shown in Figure- 38. y Figure 40 is a vertical section of the ejectorv and razor head with the ejector fully advanced. Figure v41 is a section through the line `4|4| of Figure 40.

Figure 42 is a top view of a modii'led form of Figure 32.

Figure 43 is a top view of a modified form v of Figure 32.

The particular form of a device .of my invention as shown in Figures 1 to 1,1 comprises a guard member 30, having a plurality of extended teeth 3|, 3| upon eachside thereof, the end portion 32 of the guard 38 being inclined downwardly as shown particularly in Figure 1, for purposes to be described later. The upper face of the guard 38 carries a plurality of spaced extended lugs 33, 33, 33', 33', the lugs 33', 33', .being under-cut to retain the blade in a locked position, two longitudinal recesses, or slots, 34, 34 and a centrally positioned elongated opening 35. One endof the guard 38 has two recesses 36, 36, all'of which are shown particularly in Figure 6.

by the bearings 38, 38 which areq attached to the under face of the guard 38. The blade-retaining element comprises the arms 39, 39, the ends of which are turned over the bar, or rod, 31, thus causing the latter to act as a pintle around vwhich the blade-retaining element can revolve.v

The two trip arms 40, 40 of the blade-retaining mechanism extend outwardly from each other and terminate in angularly extended members 4|, 4|, extending upwardly between the teeth 3|, 3| of the guard 30, the ends of the upwardly extendedmembers 4|, 4| being slightly above the upper face of teeth 3|, 3|.

I The arm 46 extends downwardly and inwardly Figure 26 is a sqction through the line 26-26- toward the central portion of the guard 38, the

end portion being adapted to abut upon a bladecontacting member, to be later described. A

further element of `the blade-retaining mechar nism comprises a rod W2 carried by the bearings` 43, 43 xedlyV attached to the under face of the guard 38. The blade-contacting element of the blade-retaining mechanism comprises the element 44 revoluble about the rod 42, having a downwardly extended arm 45, the` extremity of which abuts upon the extremity of the `arm 46; the' arm 41 extends upwardly through a hole 34" of the recess 34 .of the guard 30 and terminates in an outwardly extended hook-like blade-retaining 'its blade-retaining member 48 to be. revolved around the rod 42 and enabling the blade-retaining member 48 to be lowered below the upper face of the guard 30 by its downward passage through the hole 34" of the slot 34.

A second blade-retaining mechanism 'carried by the guard 38 and shown particularly in Figures 1, 3, 9 and 10 comprises a r'od 58 supported by the two bearings 5|, 5| attached to the lower face of the guard 30. The Ablade-retaining element comprises the arms 52, 52,v the ends of which encircle the rod 50, which latter acts as a pintle around which this element of themechanism can revolve. The arms 53, 53 extend away from each other, the extremities or trips 54, 54 being bent upwardly and extendingv between teeth 3|, 3| ofthe guard 30 to a distance slightly 1 above the upper face of the teeth 3|, 3|'. The arm 55 extends downwardly and outwardly as particularly shown in Figurel 9'. A rod 56 is car` riecl by Athe bearing 51 fixedly attached to the lower face of the guard. -The arm 58 has two extended members 59, 5-9 encircling the rod 56 which thus acts as a pintle around which the arm 58 can revolve. The arm 58 has two upwardly extended members 60, 68 to limit the inward movement of an inserted blade and two upwardly extended hook-like blade-retaining members 6|, 6| extending-inwardly beyond the twoarms 60, 68 to contact and .hold a blade in position. The arm 58 hasalso a downwardly extended element 62, the bevelled end 63 of which abuts upc-n the end of the member 55. A spring 64 acts to maintain the mechanism inthe p0- sition shown particularly in Figure 9. It is evi'- dent, therefore, that in this normal' position,

the hook-like member. can not be moved revolubly around the rod 56, but that a downward pressure upon the trips 54, 54 will break. the abutment between the arms 55 and 63 and allow of a movement of the blade-retaining members 6|, ,61.

The guardV 3|) has twoopenings 65, 655e ajllcygvI of the passage of water during the'. washing opferation after the device has been used in a shav-l ing operation. j

The under face of the guard 30 cmiesaxedly attached exteriorly threadedqmilblail. mem-4 ber or stud 66 adapted to receivetrhandle for the device.

'I'he illustrated handle comprises a cylindrical member 61, the upper portion of which isinternally threaded to mesh with the exteriorly threaded guard member 66, the lower end of the cylindrical member 61 being closed by the closure member 68. The lower portion oi the cylinber 68 of the cylindrical member 61 and carries a iixedly attached elongated ilat member 13, which is guided at its upper portion by a cylindrical member 13 within the sleeve 88.

My device includes a cap adapted to be capable of pressure abutment upon the upper face of a blade and to maintain' it in fixed position between the guard and the cap for shaving purposes.'

'Ihe cap'illustrated in the drawings under consideration comprises a top member 14 having the two parallel longitudinal recesses 15, 15, which are so positioned as to receive thevlugs 33, 33 of the guard 30. `Fixedly attached to the under face of the top member 14 is a centrally positioned downwardly extended member, the upper portion 16 of which is longitudinally shaped, its dimensions being such that itcan be passed through the opening 35 of the guard 38 when the longitudinal axes of the members 16 and 35 are parallel, and which portion 18 is not capable of being passed through said opening when said longitudinal axes arel not parallel to each other. The longitudinally shaped member 16 is extended into an elongated annular member |11 adapted to pass through the opening 35 .of the guard 38 and into the cylindrical stud 66, the lower portion 18 of said member 11 being threaded. Co-acting with the threaded member 18 is the interiorly threaded r'evoluble cylin- -drical'member 88, the lower'end portion 8| of which has the opposed longitudinal slits, or re- 'cesses, 82, 82 intov which the longitudinal flat members 13, 13 are inserted. A coil spring 83 abutting upon the member 84 and the loose washer 85 which abuts upon the upper face of the cylindrical member 80, tends to push the top member 14 upon a blade placed upon the guard.

The revolution of the sleeve 69, revolves the member 13 which in turn revolves the sleeve 88. If the revolution of the sleeve 68 is clock-wise, thisl revolution moves the sleeve 88 upwardly until the washer 85 abuts upon the lower face `of the stud 66, a further movement drawing the capV 14A firmly upon a blade situated upon the guard 38 and maintaining it in position during a shaving operation,

If it is desired to insert a new blade or remove an old blade, or both, the sleeve 63 is revolved anti-clockwise, whereupon the sleeve 8|! moves downwardly, the washer 88 is separated from the lower face of the stud 66, and the spring 83 will tend to raise the top- 14 from contact with the blade, and if this movement is continued until 1 the flat portion 16 of the vertically movable member is above the opening 35 of the guard, the top 14'can be revolved, and if revolved a quarter turn the spring 83 and member v18 will retain it in this open. portion, which position is adapted for the ready washing of the device, which washing process is facilitated by water passing through the openings 85, 85 in the guard.

The form of blade adaptable for the described razor of my invention isshown in Figure '7 and comprises a blade of ordinary, or dsired, thickness and dimensions having a longitu al centrally positioned recess 887 four longitudinal openings 81, 81, and end recesses 88, 88 for purposes to be described later.

vOne of the objects of my invention is a razor= so, constructed that itis impossible to insert -or remove a tree individual blade without the assistance of specially constructed' devices particularly adapted for that purpose.

That a blade can not be introduced into'or removed from the described device of my invention without the employment of specially designed devices is evident froma consideration of thel following description.

Assuming that the device is in the normal condition for shaving as shown particularly in Figures 1, 2, 6 and 7, the blade |00 is attached to the upper face of the guard 30,-as follows: One end of the blade abuts upon the xed abutments 60, 60 thus preventing its longitudinalv movement in one direction, the hook-like blade-connecting members 6|, 6| overlap the blade and prevent its 4vertical movement at this end, the projecting lugs 33, 33 of the guard extend into the openings 81, 81 of the blade preventing longitudinal movement of the blade, and the hook-like blade-retaining member 48 extending over the blade prevents its vertical movement, and the hook-like blade-retaining members 6|', 6| and the hooklike blade-retaining member 48 can not be re leased from their abutment upon the blade to a1- low of vertical movement of the blade, without special devices adapted to depress the trips 54, 5.4 and 4|, 4| while at the same time allowing freedom of vertical movement of the blade, which y would be prevented in this position as the cap is in firm abutment upon the upper face of the blade, and hence the blade could not be removed even if the trips 54, 54 .and 4|,'4| were depressed.

It is to be noted that even the raising of the cap by revolution of the sleeve 69 will not release the blade, as the blade is rmly attached to the guard by the described mechanism carried by thel guard.

That a blade can not be introduced into the described device of my invention without special mechanism adapted for that purpose is evident from the following:

As a blade can not be introduced unless the cap is raised from abutment upon the guard, it

is necessary to raise the cap from the guard and VIn-order that a blade may be placed in abutment upon the upper face of the guard, the one edge of the blade must be beneath the hooklike members 6|., 6|, beneath the hook-like member 48and the projecting lugs 33, 33 of the guard must be inserted in the openings 81, 81 of the blade. vA consideration of the drawings shows that such positioning is not possible. If a blade be moved inwardly in order -that the member 16 of the cap can pass through the open'- ing 86 of the blade, the interior edge of that slot will contact the blade-retaining member 48 of the guard, preventing the further' insertion of the blade and there is not space enough between the hook-like blade-retaining member 48 and its adjacent lugs 33 of the guard to 'ex the blade beneath the member 48. Further, the edge of the blade must be positioned beneath the hook-like members 6|, 6| and the blade can not reach them, and even if it did pass the cap memf .'complished for the reasons stated above.`

addition to the above-mentioned means for pre- 33 to flex the blade to accomplish the purpose. As it is evident that the guard lugs 33, 33 must be inserted within the blade openings 81, 81 in order to position the blade, this can not be acventing the insertion of a blade without the employment of a special device, if the cap is positioned as shown in. Figures 10 and 11, the width of the member -16 will preventthe insertion of a blade as it is wider than that of the blade slot 86. It is evident, therefore, that the employment of some device which will depress the members '4I, 4| and 54, 54 is necessary in order to insert oiy my invention previously described.

The 'particular form of my operating device shown in Figures 12, 13, 14 and 15 comprises a blade magazine adapted to receive a stacked plurality of blades. The top, sides and a portion of the bottom are formed by a dat top member |0I., the sides of which are bent upwardly and then outwardly to form the curved edges |02, |02, then downwardly to form thesides |03, |03, then inwardly to form the bottom members |04, |04, then upwardly to form the shoulders |05, |05 and then inwardly to form the inclined blade guides |06, |06; The top IOI has a recess consisting of the rectangular recess |01 extended into the longitudinal recess |08, the portion |09 of the topA |0|, containing the rectangular recess |01 being inclined downwardly, the outer edge of which 4is spaced from the inclined member |06 to allow of the passage of a blade therethrough. The lugs A IIO, ||0 which are rectangular in shape are secured to the top |0| of the operating device. Positioned within the device is a leaf spring. III having the longitudinal recess I|2 and the openings II3, I|3 through the latter of which extend the lugs IIO, IIO. 'I'he spring III is riveted to the top IOI by means of the rivet I I4, and innormal position the two end extremities II5, II5 are resiliently pressed against the under face of the inclined member |06. A plurality of blades |00, |00 as shown in Figure 7, are stacked within the blade magazine, as shown, the recess 86 o f the blades coinciding with the recess |06 of thetop member I0I and the recess ||.2 of the spring III, with the lugs ||0, IIII of the device passing through the holes 81, 01 of the blade. 'Ihe blades are 'thus positioned in exact colnci dence with each other within the magazine. The space between the faces of the lugs I-I0, ||0 and the inner edge of the member |06 is less than the thickness of'two blades, thus allowing of the passage of only one blade fromthe magazine, and the spring III forces the bottom blade of the stack in the magazine against the under edge of the member |06 in position for withdrawal therefrom through the space between the members |06 and |09. The rear end of the magazine is closed `by the member I I6.

The modied form of my blade magazine shown in Figure 16 is similar to that shown in Figures 12, 13, 14 and 15 except that the lug I4 of the top I0| has been substituted by the four rectangular lugs |I1, II1.

The modified form of my blade shown in Figure 17 is similar to that shown in Figure 'I ex- -that it has two elongated openings |20, |20 instead of the four openings 81, 81.

The method of applying the blade magazine shown in Figures 12, 13, 14 and 15 to the insertion and deposit of a new blade and the 'wlth- I drawal of an old blade to the razor shown in Figures 1 to 11, the application of the modified forms being similar, is shown in Figures 19 tov 23.

Figures 1 and 2 illustrate the rst step of thus inserting a blade and withdrawing a blade and comprises raising the cap 14 from abutment upon the positioned blade |00 which it is desirous of removing from the razor. The inclined portion |09 of the magazine top IOI is inserted between the inclined member 32 of the guard 30 and the blade 5 |00, the blade |00 thus resting upon the upper face of the inclined portion |09 of the-magazine top IOI and the magazine is forced slowly inwardly. Duringv this movement the shoulders |05, |05 of the magazine abut upon the shoul- E ders I2I, I2| of the guard 30, thus guiding the magazine longitudinally over the guard.

This position is shown in Figure 20, from which it will be noted that the blade |00 is llexed and the end portion is upon the inclined member |09 of the magazine, this flexing removing the blade from the blade-retaining member 4S, that mem-4 ber, however, not being allowed to swing freely as the trip 44 has not been moved, and it will also be noted that the trip 54 has not been moved a to release the blade from the blade-retaining members 6|,6|.A

Figure 21 illustrates a further inward movement of the magazine, in which the blade |00 has moved up further along the upper face of the 4 inclined portion |09 of the magazine, but is still retained by the blade retaining members 6|, 6I-. The trip 44 has now been depressed by the bottom |04 of the magazine as it has passed over it,

thus releasing the blade-retaining member 48 4 now been depressed by the magazine causing the 5 blade-retaining member to move outwardly so that it will not interfere with the insertionof a new blade. During this movement the magazine has carried the stack of blades inwardly and has positioned them properly above the guard. The 6,

lower blade of this stack has been pressed downwardly by the spring III allowing it to pass over the magazine lugs IIO, IIO' and hence outwardly of the magazine, while the remaining blades are prevented fromsuch movement. The lugs 33. 33 6,

of the guard now enter'the openings 81, l1 of the lower blade, thus retaining the blade positloned upon the guard during the withdrawal ot the magazine. During this withdrawal, the released trips 44 and 54 move upwardly thus lock- '7 ing the blade-retaining members 6I., 6| and 48 in their blade retaining position, and at the same time the magazine withdraws the old blade whIch is retained upon its top during this withdrawal movement. The cap I4 is then positioned inabut- 7 2,230,102 vment upon the blade by-revolving the handle sleeve 69.

It is to be noted that in my device a blade is placed in removable attached position upon a guard without lthe employment of a cap to accomplish this result. f

The modied form of a device of my invention illustrated in Figures 24 to 32 is directed to razors adapted to be used with single edge blades.

'Ihe handle of this form of my device is similar to the handle shown in Figures 1 to 10, and cornprises a cylindrical member 61, the upper portion of which is internally threaded to mesh with the externally threaded guard member 66, the lower end of the cylindrical member 61 being closed by the closure member 68. The lower portion of the cylindrical member 61 carries a revoluble sleeve 69, the closed end of the sleeve 69 carrying the xedly attached cylindrical member 1| which extends through the opening 12 of the end member 68 of the cylindricalmember 61 and carries a fxedly attached elongated ilat member 13, which is guided at its upper portion by a cy lindrical member 13 within the sleeve 80.

The guard 200 of the modiiied form of a device of my invention carries a plurality .of extended teeth 20| uponone side thereof, a longitudinai portion 202 of the guard behind the teeth being depressed fromthe face of the guard for purposes to be described later. The guard 200 has a plurality of openings 203,203 adapted to Afacilitate washing of the blade and to prevent soap-suds from blocking the passage between the guard and a blade during a shaving operay tion. The guard carries also two extended rectangular lugs 204, 204 which are under cut 205, 205 at their inner sides. It has also an elongated opening 206 and an extended platform 201 having an opening therein corresponding tothe opening A blade-retaining mechanism is attached to each side of the under face of the guard 200 in proximity of the plurality of teeth and comprises a bar 2I| carried by the bearings 2|2, 2|2, carried by the bar 2II and revolubly thereon is a member 2I3 having the upwardly extended trip 2|4, a spring 2|5 maintaining the trip 2|4 above the upper face of the guard when in normal position. The bearings 2 I6, 2I6 carried by the under face of the guard support a rod 2| 1, which carries a revoluble blade retaining member, or dog, 2|8, the upper portion of which forms a hook-like projection 2|9. l

As illustrated particularly in Figure 29, in full l'nes, when the device is in normal position the ment will release the abutment ofthe end of member 2I3 against the lower portion of the dog 2I8 and will allow it to move inwardly and downwardly from its position above the face of the guard wihn recesses 208', 208' and the b-laderetaining members will then be in.the broken line position shown in Figure 29. Y

Upon the removal of the downward pressure contact with the blade.

upon the trip zu, the spring 2|5 wiu return the described elements into their former positions, with the trip 2M and the dog 2 I9 above the plane of the upper face lof the guard.

The top member of the illustrated device comprises the top 220 to which is flxedly attached a centrally positioned downwardly extended member, the upper portion 22| of which is longitudinally shaped, its dimensions being such that it can be passed through the opening 206 of the guard and the corresponding opening in the platform 201 when the longitudinal axis of the member 22| and of said openings are paralleled, and which portion 22| is not capable of being passed through said openings when said longitudinal platform 201, and with the cylindrical member 1 222, the lower portion 223 of said member 222 be'- ing threaded. Co-acting with the threaded member 223 is the internally threaded revoluble cylindrical member 224, the lower portion 225 of which has opposed longitudinal slits, or recesses, 226 with which the longitudinalv flat mem-y ber'13 is inserted. j

A coil spring 221 abutting upon the member 228 and the loose washer 229 which abuts upon the upper facevof the cylindrical member 224 tends member 13, which in turn revolves the sleeve 80.'

If the revolution of the sleeve 69 is clock-wise, this revolution moves the sleeve 80 upwardly until the washer 229 abuts upon the lower face of the member 66, a further movement drawing the cap 220 firmly upon a blade situated upon the guard 200 and maintaining it in position during a shaving operation.

If it is desired to insert a new blade, or remove a used blade, or both, the sleeve 69 is revolved anti-clockwise whereupon the sleeve 80 moves downwardly, the washer 229 is separated from the lower face of the member v66 by the spring 221, and the cap 220 is free to be raised from the sleeve 69 can be moved upwardly, the flat portion 22| of the cap stem will be moved into a position above the upper face of a blade situated upon the guard and can then be revolvedinto the positionshown in Figures 31 and 32 and upon a release upon the upper movement of the sleeve 69, the spring-221 will cause the lower face of the member 22| to abut upon the platform 201 retaining the cap in its raised position.

A form of blade 230 adaptable for the described razor of my invention is shown in Figure 28, and comprises a blade or ordinary or desired thickness dimensions having two openings 23|, 23|, opposed end recesses 232, 232 and a rear recess 233 extended into the reduced recess 234.

To introduce a blade into the razor, the sleeve 69 is revolved counter-clockwise allowing a free upper movement of the cap 221|.l 1The two trips 2|4, 2|4 are simultaneously depressed, thus releasing the blade-retaining dogs 2I9, 2|9 from abutment with the said trips and allowing them to swing backwardly and downwardly. A blade is now positioned upon the guard, the openings 23|, 23| being positionedover the lugs 204, 204

' of the ,guard with the edges of the openings 23|,

23| resting in the undercuts 205, 205 of the lugs 204, 204, lthus preventing the forward movement of the blades. The pressure is now released from the trips 2I4, 2 I4, the spring acting to force the dogs 219, 2|9 upwardly and forwardly until the hook-like portions of the dogs are positioned upon the upper faces of the blade, thus preventing a rearward movement of the blade.

It will thus be notedA that the blade is removably attached to the guard and .that it can not be released therefrom until there is a simultaneous depression of the two trips 2I9, 2|9.

It will be further noted that if the cap is retained in its upper position a blade can not be introduced as the longitudinal length of the member 22| is greater than thev width -of the blade recess 233 and hence during the process of inserting a blade the cap 220 must be free to be moved upwardly although under the downward pull of the spring 221.

against the spring pull, the blade must be inserted accurately in order that it may be properly positioned upon the guardv lugs and the two trips must be simultaneously depressed and held in that position during the blade insertion.

It is evident, therefore, that it is practically' impossible .to perform all of these operations without the assistance-of a d evice especially adapted to perform all of the operations accurately and automatically and hence the device of my invention is a razor in which the insertion and withdrawal of a .blade is impossible without such a device.

The modified form of my device shown in Figure l42 is similar to that previously described, except that the trip blade releasing mechanism is beneath the blade and at each end portion of the fruard and in alignment with the guard blade positioned lugs.

The modified form of my device shownl in Figure 43 is similar to that shown in Figure 42, except that the trip mechanism is still positioned below a vblade but positioned somewhat nearer the ends of the guard.

It will be noted that in the devices of Figures 42 and 43, the trip mechanism is entirely covered by the blade and hence can not possibly be moved by a `handto release them, thus necessitating a special device for this purpose.

The construction and method of use of the blade-magazine as shown in Figures 33 to 41 are similar to those shown in Figures 12 to 23 and described herein, except for such minor changes of construction-as'are evident, that it is believed a detailed description thereof is not necessary, as similarparts are indicated by similar numerals, it being specially noted that the rear end II6 is extended upwardly to protect the hand of the user from being cut by the withdrawn blade.

My invention, therefore, presents safety razors so constructed that the insertion and removal of blades by hand is'practically impossible'while the insertion and removal of blades is easily and eiectively accomplished by devices adapted for that purpose and especially by blade magazines as shown and described.

Many changes may be made in the unessential elements of the devices, as shown, without going beyond the scope ofmy invention; the well-known spaced bar guards may be employed instead of toothed guards, the cap may be hinged to the guard, separable therefrom or otherwise attached thereto and otherevident changes of Further, during the insertion of a blade, the cap-must be thus raised parts may be employed. The blade carrying device shown and described in this application is the subject matter of United States patent application for Blade ejector magazines# led August 10, 1940, under Serial Number 352,065.

Therefore', I do not limit myself to the particular form, size, number or arrangement of parts of the razors and devices as shown and described as these are given simply as means-for clearly describing my invention andmay be varied and changed without going beyond the scope of my invention.

I claim:

1. In a safety razor, in combination, a handle, a guard member adapted to receive a blade thereon, a cap member, means 'adapted to abut said cap -member upon a blade positioned between said guard member and said cap member, means adapted to remove said abutment between said cap member and said blade, means carried by said guard member adapted to removably attach said blade upon said guard member during the non-abutting position of said cap member and said blade, means adapted to position said attaching means for -the deposit of a blade upon said guard by a longitudinal movement of a blade-carrying device between said guard and a previously deposited blade upon said guard, means carried by said blade-carrying device for positioning a blade ,upon said guard, means for positioning said attaching means upon said blade.

upon a reverse movement vof said blade-carrying device and means carried by said blade-carrying device adapted to withdraw said previously deposited blade by its said reverse movement.

2. In a safety razor, in combination, a, handle, a guard member adapted to receive a blade thereon, a cap member, means adapted to abut said cap 4member upon a blade positioned between said guard member and said cap member, means adapted to remove said abutment between said cap member and said blade, means carried by device for positioning a blade upon said guard,

means for positioning said attaching mean's upon said blade upon a reverse movement of said bladecarrying device and means carried by said bladecarrying device adapted to withdraw said previously deposited blade by its said reverse move- I ment.

said blade upon said guard member during theA non-abutting position of said' cap member and said blade, trip-operative means adapted to posltion said attaching means for the deposit of a blade upon said guard by al longitudinal movement of a blade-carrying device betweensaid guard and a' previously deposited blade upon said guard, means carried by said blade-carrying device for positioning a blade upon said guard, means for positioning said attaching means upon said blade upon a reverse movement of said tach said blade upon said guard member during the non-abutting position of said cap member and said blade, trip-operative means positioned above the blade-receiving face of said guard member and adapted to position said attaching means for the deposit of a blade upon said guard by a'longitudinal movement of a blade-carrying de-' vice between said guard and a previously de.

posited blade upon said guard, means carried by said blade-carrying device for positioning a blade upon said guard, means -for positioning said attaching means upon said blade" upon a reverse movement of said blade-carrying device and means carried by l said blade-carrying device adapted to Withdraw said previously deposited blade by its said reverse movement.

' 5. In a safety razor, in combination, a handle; a guard member adapted to receive a blade thereon; a cap member; means adapted to abut said cap upon a blade positioned upon said guard member and between saidguard member and said cap member; means adapted to remove said .abutment between said cap member and said blade; means carried by said -guard member adapted to 4removably attach said blade upon said guard member during the non-abutting position of said cap member and said blade; guide means carriedtby said guard member positioned parallel with respect to opposite-edges of said guard member and extending angularly with respect to the upper face of said guard member; means adapted to position said attaching means for the deposit of a bladel upon the upper face of said guard member by a-movement of a bladecarrying device in one direction over the face of.4 said guard member, said blade-carrying de- -vice having parallel guide members adapted to abut upon said guard guide members during said movement; and means adapted to removablyy attach said blade attaching means upon said blade upon a reverse movement of said blade-carrying device. i

6. In a safety razor, in combination, a handle; a guard member adapted to receive a. blade thereon; a cap-member; means, adapted to abut'said cap upon a blade positioned upon said'guard member and between saidv guard'member and said. cap member; means adapted to remove said vabutment between said cap member and said blade; means carried' by said guard member adapted to .removably `attach said blade upon said guard member during the non-abutting position of said cap member and^said blade; guide means carried by said guard member positioned parallel -with respect to opposite edges of said guard member andfextending angularly .with respect t'o the upper face of said guard member; means positioned above the blade-receiving face \of said guard member adapted to position said attaching means for the deposit of Aa blade uponl combination, a handle,A

the upper face of said guard member by a movement of a blade-carrying device in one direction over the face of said guard member, said bladecarrying device having parallel guide members adapted to abut upon said guard guide members during said movement; and means adapted vto removably attach said blade attaching means upon said blade upon a reverse movement of said blade-carrying device.

7. In a safety razor, in combination, a handle;

a guard member adapted to receive a blade there- I on; a cap member; means adapted to abut said cap upon a blade positioned upon said guard member and between said guard member and said cap member; means adapted to remove said abutment between said cap member and said blade; adapted to removably attach said blade upon said guard member during the non-abutting po' sition of said cap member and said blade: guide means carried by said guard member positioned parallel with respect to opposite edges ofsaid guardlmember and extending angularly with respect to the upper face of said guard member; trip-operative meansA adapted to position said attaching means for the deposit of a blade upon means carried by said guard member'l the upper face of said guard member by a movement of a blade-carrying device in one direction over the face of said guard member, said bladecarrying device having parallel guide members adapted to abut upon said guard guide members during said movement; and means adapted to removably attach said" blade attachingk means upon A said blade upon a reverse movement of said blade-carrying device. Y

8. In a safety razor, in combination, ahandle;

a guard member adapted to receive a blade there-J on; a cap member; means adapted to abut said cap upon a. blade positioned upon said guard member and between said guard member and said cap member; means adapted to remove said abutment between said cap member and said blade; r

' means carried by said guard member adapted to removably attach said blade upon said 'guard member duringrthe non-abutting position ofsaid Icap member and said blade; guide means carried by said guard member positioned parallel with respect to opposite edges of said guard member and extending angularly with respect to the up 'per face of said guard member; trip-operative means positioned above the blade-receiving face of said guard member adapted to position said I attaching means for the deposit of a blade upon theupper face of said guard member by a movement of a blade-carrying device in one direction over the face of said .guard member, said bladecarrying device having parallel guide members adapted to abutupon said guard guide members during said movement; and means adapted to removably attach said Vblade attaching means upon said blade upon a reverse movement of said..

blade-carrying device.

9. In a safetyrazor, in combination, a handler.v l

a guard member adapted to receive a bladethereon; a cap member; means adapted to abut said respect to opposite edges of said guard member jcap upon a blade positioned upon said guard and extending angularly with respect to the upper face of said guard member; means adapted to position said attaching means for the deposit of a blade upon the upper vface of said guard member 'by a movement of a blade-'carrying device in one direction between the face of said guard member and a previously deposited blade thereon, said blade-carrying device having parallel guide members adapted to abut upon v'said guardguide members during said movement; and means adapted to removably attach said blade attaching means upon said blade upon a. reverse movement of said blade-carrying device.

10'. In a safety razor, in combination, a handle; a guard member adapted to receivea blade thereon; a cap member; means adapted to abut said cap upon a blade positioned upon said guard member and between said guard member and said cap member; means adapted to remove said abut-- ment -between said cap member and said blade; means carried by said guard member adapted to removably attach said blade upon said guard member during the non-abutting position of said cap member and said blade; guide means carried by said guard member positioned parallel with respect to opposite edges of said guard member and extending angula'rly with respect to the upper face of said guard member; means positioned above the ibladereceiving face of said guard member adapted to position said attaching means for the deposit lof a blade upon the upper face of said guard member by a movement of a. bladecarrying device in one direction between the face of said guard member and a previously deposited blade thereon, said blade-carrying device having parallel guide members adapted to abut upon said guard guide members -duringsaid movement;

and means adapted to removably attach said blade attachingmeans upon said blade upon a reverse movement of said blade-carrying device.

11. In a safety razor, in combination,l ahandle; a guard member adapted to receive a Iblade thereon; a cap member; means adapted to abut said cap upon a blade positioned upon said guard member and between said guard member and said capmember; means adapted to remove said abutment between said cap member and said blade; means carried by said guard member adapted to removably attach said blade upon said guard-member during the non-abutting position of said cap member and said blade; guide means carried by said guard member positioned parallel with respect to opposite edges of said guard member and extending angularly with respect to the upper face of said guard member; trip-operative means adapted toposition said attaching means for the deposit 'of a bladeupon the lupper face of said gua'rd member by a movement of a bladecarrying device in one ldirection between the face of said-guard member and a previously deposited blade thereon, said blade-carrying device having parallel guide members adapted to abut upon said guard guide members during said movement; and means adapted to removably attach said blade att` lching means upon said blade upon a reverse movement of said blade-carrying device.

12. In a safety razor, in combination, ai handle; a guard member adapted to receive a blade thereon; a cap member; means adapted to abut said cap upon a blade positioned upon said guard member and betweensaid guard member and said cap member; means adapted to remove said abutment between said cap member and said blade; means carried by said guard member adapted to removably attach said blade upon said guard member during the non-abutting position of said cap member and said blade; guide means carried by said guard member positioned parallel with respect to opposite edges of said guard-member and extending angularly with respect to the upper face of said guard member; trip-operative means positioned above the bladereceiving face of the guard member adapted to position said attaching means for the deposit of a blade upon the upper face of said guard `member by a. movement of a blade-carrying device in one direction between the face of said guard member and a previously deposited blade thereon, said blade-carrying device having parallel guide members adapted to abut upon said guard guide members during said movement; and means adapted to removably attach said blade attaching means upon said blade upon a reverse movement of said blade-carrying device.

13. In a safety razor, in combination, a handle; a guard member adapted to receive a blade thereon; a cap member; means adapted to abut said cap upon a blade positioned upon said guard member and between said guard member and said l cap member; means adapted to remove said abutment between said cap member and said blade; means carried by said guard member adapted to removably attach said blade upon said guard member during the non-abutting position of said cap member and said blade; guide means carried by said guard member positioned parallel with. i

respect to opposite edges of said guard member and extending angularly with respect to the upper face of said guard member; means adapted to position said attaching means for the deposit of a blade upon the upper face vof said guard member by a movement of a blade-carrying device in one direction between the'face of said guard member and a previously deposited blade thereon; and means carried by said blade-carrying device adapted to remove said blade by a re- -verse movement of said blade-carrying device.

14. In a safetyrazor, in combination, a handle; a guard`member adapted to receive a blade thereon; a cap member; means adapted to abut said cap upon a yblade positioned upon said guard member and between said guard member and said cap member; means adapted to remove said abutment between said cap member and said blade; means carried by said guard member-adapted to removably 'attach said blade upon said guard member during the non-abutting position of .said cap member and said blade; guide means positioned above the blade-receiving face of said `guard member carried by said guard member positioned parallel with respect to opposite edges of said guard member and extending angularly with respect to the upper face of said guard member; means adapted to position said attaching means for the deposit of a blade upon the upper face of said guard member by a movement tor move said blade by a reverse movementof. said yblade-carrying device. a

15. In a safety razor; in combination, a handle; a guard member adapted to receivea'blad-e thereon; a cap member; means adapted to abut said cap upon a blade positioned upon said guard lmember and between said guard member and said cap member; means adapted to remove lsaid I abutment between said capmember and said blade;

means carried by said guard member adapted to 7i removably lattach said blade upon said guard member during the non-abutting position of said cap member and said blade; guide trip-operative means carried by said guard member positioned parallel with respect to opposite edges of said guard member and extending angularly with respect to the upper face of said guard member; means adapted to position said attachingmeans for the deposit of a blade upon the upper face of said guard member by a movement of a. bladecarrying device in one direction between the face of said guard member and a previously deposited blade thereon; and means carried by said bladecarrying device adapted to remove ysaid blade by a reverse movement of said blade-carrying device.

16. In a safety razor, in combination, a handle; a guard member adapted to receive a blade thereon; a cap member; means` adapted to abut said cap upon a blade positioned upon said guard member and between said guard member and said cap member; means adapted to remove said abutment between said cap member and said blade; means carried by said guard member adapted to removably attach said blade upon said guard member during the non-abutting position of said cap member and said blade; guide tripoperative means positioned above the blade-receiving face of the guard member carried Aby said guard member positioned parallel with respect to opposite edges of said guard member and extending angularly Withrespect to the upper face of said guard member; means adapted to position said attaching means for the deposit of a blade upon the upper face of said guard member by a movement of a blade-carrying device in one direction between the face of said guard member land a previously deposited blade thereon; and means carried by said blade-'carrying device adapted to remove said blade by a reverse movement of said blade-carrying device.

` SIDNEY H. BENJAMIN. 

